19123920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{26561}}^1$

素因数の和:26580

約数の個数: 60

約数和(自身を含む): 64226916

約数和(自身を除く): 45102996

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 26561, 53122, 79683, 106244, 132805, 159366, 212488, 239049, 265610, 318732, 398415, 424976, 478098, 531220, 637464, 796830, 956196, 1062440, 1195245, 1274928, 1593660, 1912392, 2124880, 2390490, 3187320, 3824784, 4780980, 6374640, 9561960, 19123920]

約数ペア:

[(1, 19123920), (2, 9561960), (3, 6374640), (4, 4780980), (5, 3824784), (6, 3187320), (8, 2390490), (9, 2124880), (10, 1912392), (12, 1593660), (15, 1274928), (16, 1195245), (18, 1062440), (20, 956196), (24, 796830), (30, 637464), (36, 531220), (40, 478098), (45, 424976), (48, 398415), (60, 318732), (72, 265610), (80, 239049), (90, 212488), (120, 159366), (144, 132805), (180, 106244), (240, 79683), (360, 53122), (720, 26561)]